The process of examining the inner eye using ophthalmoscope is known as ophthalmoscopy. There is direct and indirect ophthalmoscopy. In the former procedure, the image of the eye is usually produced in an upright image which usually takes up to 15 times the original size. Indirect ophthalmoscope inverts the image to a size between 2 to 5 times its actual size. This procedure is used in the process.
There are different features of instruments used that determine which of the two procedures is adopted. For this reason, each type of examination uses its appropriate funduscope. The direct funduscope is tiny, almost the size of a hand-held torch, with potent lenses offering enlargement.
This instrument is commonly used during run-of-the-mill examinations. The indirect funduscope has a headband that projects a light that works in conjunction with a small hand-held lens. The latter supports a broader view of the inner eye structure.
The other advantage is that it provides better clarity for the opacities of the retina. This is due to the enhanced lighting that promotes visualization through the thick cloudy media. This type of ophthalmoscope has the ability to improve vision by separating paths of incident and reflected lights.
This instrument provides indirect illumination which enhances the pigmented lens size. The equipment is also best for viewing retina because it has monocular and binocular which facilitate peripheral views. The other advantage is that the binocular ophthalmoscope gives examiner better access to the stereoscopic view which is advantageous due to the 3D view it gives the retinal detachment visualization.
The stereoscopic images that result from this equipment are of high quality and illuminated well. The equipment itself is very portable and the doctor or examiner only needs to hold the lens at proximity of length of arm close to the eye of the patient. The advantage this gives is that the patient will not be intimidated at all however apprehensive they may be.
The indirect type of instrument allows a wider working distance for the patient and doctor. This means that even lower powered lenses can provide larger views. It does not demand strict cooperation as is the case with its counterpart. It allows for viewing retina in far ends.
Some disadvantages of going for the indirect funduscope include the complications of inverted vertical and horizontal images, along with lowered levels of magnification. It must be remembered that acquiring a perfect perspective can take a lot of time and patience. No technique is ever perfect, but some offer advantages over other comparative ones. Currently, the binocular indirect ophthalmoscope is preferred in the optometry market because of its many advantages.
There are different features of instruments used that determine which of the two procedures is adopted. For this reason, each type of examination uses its appropriate funduscope. The direct funduscope is tiny, almost the size of a hand-held torch, with potent lenses offering enlargement.
This instrument is commonly used during run-of-the-mill examinations. The indirect funduscope has a headband that projects a light that works in conjunction with a small hand-held lens. The latter supports a broader view of the inner eye structure.
The other advantage is that it provides better clarity for the opacities of the retina. This is due to the enhanced lighting that promotes visualization through the thick cloudy media. This type of ophthalmoscope has the ability to improve vision by separating paths of incident and reflected lights.
This instrument provides indirect illumination which enhances the pigmented lens size. The equipment is also best for viewing retina because it has monocular and binocular which facilitate peripheral views. The other advantage is that the binocular ophthalmoscope gives examiner better access to the stereoscopic view which is advantageous due to the 3D view it gives the retinal detachment visualization.
The stereoscopic images that result from this equipment are of high quality and illuminated well. The equipment itself is very portable and the doctor or examiner only needs to hold the lens at proximity of length of arm close to the eye of the patient. The advantage this gives is that the patient will not be intimidated at all however apprehensive they may be.
The indirect type of instrument allows a wider working distance for the patient and doctor. This means that even lower powered lenses can provide larger views. It does not demand strict cooperation as is the case with its counterpart. It allows for viewing retina in far ends.
Some disadvantages of going for the indirect funduscope include the complications of inverted vertical and horizontal images, along with lowered levels of magnification. It must be remembered that acquiring a perfect perspective can take a lot of time and patience. No technique is ever perfect, but some offer advantages over other comparative ones. Currently, the binocular indirect ophthalmoscope is preferred in the optometry market because of its many advantages.
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